Class V. ONISCUS. 



with six membranaceous, transversely striated 

 scales or plates. Tab. xix. Jig. 6. 



Gm. Lin. 300g. t. 4. /. 12. 7, Asilus. 



Pallas, spic. Zool. ix, 71- Gronov. Zooph. 997, Two-plated. 



[O. with an hard convex body j head narrower; 

 tail semi-oval ; abdomen of the female covered 

 with two or three lammce, which conceal the 

 eggs; color of the back blackish brown. 



This insect is found throughout the vast ex- 

 tent of the eastern and western oceans, in the 

 mediterranean and the northern seas, and in- 

 fests all the softer species of fish. 



Pellet. 



Pallas spic. Zool. ix. 7O. t. 4. /. 18. 18.* 8. Globa- 



TOR. 



[O. much resembling the preceding species, but 

 smaller; rolls itself like the land species, the O. 

 Armadillo. 



Adams in Lin. Tr. v. /. 8. /". 3, 4. n. Bidenta- 



TUS. 



[O. with seven scales, the last bidentate ; abdo- ^'""^^'^• 

 men without plates ; upper side marked with 

 six transverse rows of ochreous spots ; length 

 half an inch. Observed in Milford Haven. 



